105 lines
2.5 KiB
C++
105 lines
2.5 KiB
C++
/*
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* This file Copyright (C) 2015 Mnemosyne LLC
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*
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* It may be used under the GNU GPL versions 2 or 3
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* or any future license endorsed by Mnemosyne LLC.
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*
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*/
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#include <QApplication>
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#include <QStyleOptionHeader>
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#include <QStylePainter>
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#include "TorrentView.h"
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class TorrentView::HeaderWidget : public QWidget
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{
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public:
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HeaderWidget(TorrentView* parent) :
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QWidget(parent),
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myText()
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{
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setFont(qApp->font("QMiniFont"));
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}
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void setText(QString const& text)
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{
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myText = text;
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update();
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}
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// QWidget
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QSize sizeHint() const override
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{
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QStyleOptionHeader option;
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option.rect = QRect(0, 0, 100, 100);
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QRect const labelRect = style()->subElementRect(QStyle::SE_HeaderLabel, &option, this);
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return QSize(100, fontMetrics().height() + (option.rect.height() - labelRect.height()));
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}
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protected:
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// QWidget
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void paintEvent(QPaintEvent* /*event*/) override
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{
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QStyleOptionHeader option;
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option.initFrom(this);
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option.state = QStyle::State_Enabled;
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option.position = QStyleOptionHeader::OnlyOneSection;
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QStylePainter painter(this);
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painter.drawControl(QStyle::CE_HeaderSection, option);
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option.rect = style()->subElementRect(QStyle::SE_HeaderLabel, &option, this);
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painter.drawItemText(option.rect, Qt::AlignCenter, option.palette, true, myText, QPalette::ButtonText);
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}
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void mouseDoubleClickEvent(QMouseEvent* /*event*/) override
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{
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emit static_cast<TorrentView*>(parent())->headerDoubleClicked();
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}
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private:
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QString myText;
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};
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TorrentView::TorrentView(QWidget* parent) :
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QListView(parent),
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myHeaderWidget(new HeaderWidget(this))
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{
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}
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void TorrentView::setHeaderText(QString const& text)
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{
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bool const headerVisible = !text.isEmpty();
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myHeaderWidget->setText(text);
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myHeaderWidget->setVisible(headerVisible);
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if (headerVisible)
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{
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adjustHeaderPosition();
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}
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setViewportMargins(0, headerVisible ? myHeaderWidget->height() : 0, 0, 0);
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}
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void TorrentView::resizeEvent(QResizeEvent* event)
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{
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QListView::resizeEvent(event);
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if (myHeaderWidget->isVisible())
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{
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adjustHeaderPosition();
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}
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}
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void TorrentView::adjustHeaderPosition()
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{
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QRect headerWidgetRect = contentsRect();
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headerWidgetRect.setWidth(viewport()->width());
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headerWidgetRect.setHeight(myHeaderWidget->sizeHint().height());
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myHeaderWidget->setGeometry(headerWidgetRect);
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}
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